Distributed novel direct current testing device

Abstract

The invention discloses a distributed novel direct current testing device which adopts distributed distribution, all functional modules are distributed near a tested device, centralized management is performed through a management module, testing of a direct current system can be completed without a plurality of testing devices, implementation is rapid and convenient, and a complex testing environment does not need to be set up. Meanwhile, the optical fiber interface is adopted, the situation that on-site standby optical fibers of a direct-current system are sufficient can be fully utilized, the modules are convenient to arrange in a distributed mode, the method is more suitable for the characteristics of on-site device cross-floor and cross-interval arrangement, and the method is lighter and easier to implement.

Description

technical field [0001] The invention relates to a distributed new type of direct current test device, which belongs to the technical field of ultra-high voltage direct current test. Background technique [0002] In recent years, more and more DC transmission projects have been put into operation, and the reliable operation of the DC protection system has become more and more important for ensuring the safe and stable operation of the DC power grid. [0003] Due to the complexity of the DC system, various protection devices are physically distributed according to the system, and the interconnection between systems is mostly interconnected by optical fibers. During the on-site acceptance, the entire system often needs to be checked. In this test mode, conventional AC sampling signals, conventional switching signals, optical fiber FT3 signals, and optical fiber Ethernet signals are applied at different locations far away. Even if a single test device can output DC control and p...

AI Technical Summary

Problems solved by technology

In this test mode, conventional AC sampling signals, conventional switching signals, optical fiber FT3 signals, and optical fiber Ethernet signals are applied at different locations far away. Even if a single test device can output DC control and protection devices, various types of data are required. , it is obviously impossible to apply signals to devices in different positions at the same time, so multiple test devices are required to cooperate to complete

[0004] In order to meet the test requirements of various control and protection devices of the DC system, the test device needs to integrate various modules such as high-power power amplifier module, input and output module, optical fiber FT3 module, optical fiber Ethernet module, management module, etc., according to the conventional design. Test devices are often bulky and bulky, and multiple test devices are not easy to carry, and the cooperation between multiple devices requires a complex test environment

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